CHANTILLY, Va. — The Sheet Metal and Air Conditioning Contractors’ National Association (SMACNA) announced that the American National Standards Institute (ANSI) has approved its HVAC Air Duct Leakage ...
For newer technicians on the job, here are a couple of HVAC service tips about leak testing and evacuating after repairing a system. The best way I've found to leak test a system is to pressurize it ...
Some of the most challenging leakage-current-testing requirements are those for patient-monitoring devices—both invasive and noninvasive. Such testing can be time-consuming and expensive, so it is ...
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